Polarized relay.



Witnesses G. B. GRAY.

POLARIZED RELAY.

APPLICATION FILED SEPT, 1, 191iv 1 2 1 49,739, Patented May 1915.

lllll lnve or Attorneys,

TRAIN lmm. may concern.

rania, ave inventeo rizeri "telav. or which the tes to improve- 1c.primary ob- "he. provision of of this character ptecl for use inconcontrol and signal icanifs former U. S. to him Jain )1... icularrelay being contwo signal circuits, as caution and tlang'er ioregoingother ohjects in view which appear as the description proceeds, the'ention resides in the combination and arrangement of parts an in the(retails of construction hereinafter clescriheil and claimed, it being;unrlerstoocl that changes in the precise embodiment of invention herein(lisclosecl can he macle within the scope of what is claimed withoutdeparting From the spirit of the invention.

in the drawings l igure l is a detailed si le elevation of the polarizedrelay, a. portion ot the armature being shown in section to show thejoint or pivot at that connection. Fig. 2 is a bottom plan view thereof.Fig. 3 is a section line taken on line (e-ti Oil Fig. 2.

Referring to the drawings, the numeral 7 designates the supportingbracket or casting, which is insulated from a supporting, plate notshown) by means of the strip 7' of insulation, this casting havingattached thereto the pern'ianent open-ring magnet 8 in whose lower endis mounted the casing 9, while attached to and depending from its upperend as clearly shown in Fig. 1, is the electromagm-t 83. This casing 9is providecl with a socket 9 and with a removable plate 9" forthereception of the pintle sunporting means 10 to which is pivoted thecircula end 11 of the oscillatory armature or lever 12 which is disposedas a continuation of magnet 8 anti in such a position as to becontrollcil hv the electroinagnet 83. The electro-n'iaggnct 3 comprisesthe two h the TEENNSYLHEHQZj-i, CONTROL 6: GO.-..-J @RELTZQIF (ll? EELMJ.

PATENT ensues.

EXGNAEa which through we mecliuin or net 8 is a polarizeci rel flue tothe attraction or force e3; lectroinagnet 83. Carried upon t e GEM. enilof the lever or arrest call or sphere "ulatio from th forward portion orWhose lower c rame i5 whose bly mounted a screw having the nii lecl not17 for acljustably carrying the hloclr 18, whose lugs 19 are providedwith alineci hores the reception of the insuiation bushing 20, analadjusting screw upon one side the acljusting screw upon. the other side,a terminal plate 29 heingz; disposed between the heacl of the screw 21and the outer face of the bushing 20, the purpose of which will appearlater.

The screws and 22 respectively, are provided with the reduced contactpoints I) and a, respectively, which are normally in the path of and areadapted to be contacted by the respective contact points 0 and ccarrieci by the armature or lever 12 in the path of or in the line ofthe said points I) and 7;, respectively. The armature 12 preferablyprovides a circuit breaker in certain circuits, not shown, and may heconnecteii in said circuit in any suitable manner to open and close thesame through the contacts Z) aml'o. I

Connected to the outer face of the frame by means of a plate 23 is ablock 24 05 insulation which has depending from the underside thereof,the two terminal posts 2; and 25', having attached thereto the twocurved spring contacts 26 and 27, respeca durable contact to resist theburning out at the point of contact with the carbon 28 and 29,respectively.

Regarding the contact points 26-27'- 28-29 as shown in Fig. 2, theplatinum contact point 26' is made to engage the carbon point 28, andthe same way platinum point 27 engages carbon point 29, and the points28 and 29 are so adjusted that when the polarized relay forcesthe leverarm against the spring and platinum point 26'', a circuit including 26and 28 is established and another circuit is ruptured at 27 and 29.Likewise when the lever'is thrown by the polarized relay in the oppositedirection, it opens the contact points 26 and 26, and closes the, points27 and 29. This controls outside circuits directly in accordance withthe polarization of the polarized magnets, which are under control ofanother circuit.

The armature 12 is permanently polarized by the magnet 8 and is adaptedto be moved in contact with either of the pole pieces (l or e by thereversing of the polarity of the relay 83. The armature 1'2 closes themagnetic circuit between the magnet 8 and the pole pieces (Z or e of therelay 83 as well as the electric circuit through the armature 12 andeither of the contacts I) or 6. Also, the movement of the armature 12closes and opens electric circuits between the contacts 26 and 28, andbetween the contacts 27' and 29 by having its insulated head 13 alternately pressing the spring contacts 26 and 2'? into and out ofelectrical engagement with their respective contact points. By thismeans two signals, such as a caution and danger signal are controlled bythis polarized relay.

will thus "be seen that by constructing the polarized relay according tothe details herein set forth, a very simple and etiicient constructionis produced and one wherein the slightest variation of the respectivec1rcuits controlling or controlled thereby, will have the etiect or beedected as desired, and

that the circuit making or retaining electromagnets will in turn controlor be controlled by the said polarized relay or elec tromagnets.

t'that is claimed is:

l. relay, having a bracket, an open ring permanent magnet dependingtherefrom, two coils and two cores connected to one pole of saidpermanent core plates carried by each core and extending toward eachother-in spaced relation, an armature pivoted for horizontal oscillationin the other end of the permanent magnet and having its free endprojected between the'core plates to be influenced thereby, a postdepending from the bracket upon the opposite side to the coil from'thepivotal point of the armature, means disposed in the lower end thereoffor limiting the oscillatory movement of the armature, a block ofinsulation connected to said post, a plurality of terminal posts carriedby said block of insulation and disposed upon opposite sides of theextreme end of the armaturc, a rod mounted in the extreme end ofthearmature, a block of insulation carried upon the extreme end of saidrod, two oppositely disposed spring contact plates carried by two ofsaid posts and disposed one upon each side of the block of insulationcarried by the rod of the armature, and adjustable contacts one to eachcontact spring carried by the remaining terminal posts, for coactionwith the respective spring contacts on'the oscillation of the armature.

2. A switch comprising: a permanent magnet, an electro-magnet comprisingtwo coils connected to one pole of said permanent magnet, pole pieces onthe opposite curl of said magnets, an armature pivoted for oscillationin the other end of the permanent magnet and having its free endextending. between the pole pieces of the electro-mag net so as to beinfluenced thereby, a terminal connected to the armature, contact pointsarranged in spaced relation on either side of the pivoted armaturewhereby a circuit may be established through said contacts and thearmature, two sets of second contact points insulated from each othei.one set on either side of the armature, and an insulated portion on thearmature to engage with certain of said second contact points wherebythe contact points of each set may be brought into contact with eachother to establish a circuit independent the circuit established throughthe armature by the movement thereof.

in testimony that l claim the 't'oregoing as my own, l have heretoallixed my signature in the presence of two witnesses.

tllltl ll llilt its (filthy nnns'r PAYNE, time P. THURBFR.

